password will be created on first run and will be saved inside this file:
kmlock.ini in the kmlocker folder. to reset the password.. simply delete kmlock.ini and you'll be prompted for new password.

can be useful when using a shared computer and another user wants to quickly access something and you have important unread tabs and want to ensure that that other user wont't close or surf with it.. or you can just save the session or when a firefox convert specifically asks for this: https://addons.mozilla.org/en-US/firefox/addon/4639